198 lines
6.4 KiB
C
198 lines
6.4 KiB
C
/* $NetBSD: sparc64.c,v 1.10 2002/04/30 14:24:33 lukem Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn of Wasabi Systems.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 2002 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(__RCSID) && !defined(__lint)
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__RCSID("$NetBSD: sparc64.c,v 1.10 2002/04/30 14:24:33 lukem Exp $");
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#endif /* !__lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <err.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "installboot.h"
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#define SPARC64_BOOT_BLOCK_OFFSET DEV_BSIZE
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#define SPARC64_BOOT_BLOCK_BLOCKSIZE DEV_BSIZE
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#define SPARC64_BOOT_BLOCK_MAX_SIZE (DEV_BSIZE * 15)
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int
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sparc64_clearboot(ib_params *params)
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{
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char bb[SPARC64_BOOT_BLOCK_MAX_SIZE];
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ssize_t rv;
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assert(params != NULL);
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assert(params->fsfd != -1);
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assert(params->filesystem != NULL);
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if (params->flags & IB_STARTBLOCK) {
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warnx("Can't use `-b bno' with `-c'");
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return (0);
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}
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/* first check that it _could_ exist here */
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rv = pread(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET);
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if (rv == -1) {
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warn("Reading `%s'", params->filesystem);
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return (0);
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} else if (rv != sizeof(bb)) {
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warnx("Reading `%s': short read", params->filesystem);
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return (0);
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}
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/* now clear it out to nothing */
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memset(&bb, 0, sizeof(bb));
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if (params->flags & IB_VERBOSE)
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printf("%slearing boot block\n",
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(params->flags & IB_NOWRITE) ? "Not c" : "C");
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if (params->flags & IB_NOWRITE)
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return (1);
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rv = pwrite(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET);
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if (rv == -1) {
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warn("Writing `%s'", params->filesystem);
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return (0);
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} else if (rv != sizeof(bb)) {
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warnx("Writing `%s': short write", params->filesystem);
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return (0);
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}
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return (1);
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}
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int
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sparc64_setboot(ib_params *params)
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{
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struct stat bootstrapsb;
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char bb[SPARC64_BOOT_BLOCK_MAX_SIZE];
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uint32_t startblock;
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int retval;
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ssize_t rv;
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assert(params != NULL);
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assert(params->fsfd != -1);
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assert(params->filesystem != NULL);
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assert(params->s1fd != -1);
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assert(params->stage1 != NULL);
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retval = 0;
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if (fstat(params->s1fd, &bootstrapsb) == -1) {
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warn("Examining `%s'", params->stage1);
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goto done;
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}
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if (!S_ISREG(bootstrapsb.st_mode)) {
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warnx("`%s' must be a regular file", params->stage1);
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goto done;
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}
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memset(&bb, 0, SPARC64_BOOT_BLOCK_MAX_SIZE);
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rv = read(params->s1fd, &bb, sizeof(bb));
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if (rv == -1) {
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warn("Reading `%s'", params->stage1);
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goto done;
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}
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if (params->flags & IB_STARTBLOCK)
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startblock = params->startblock;
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else
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startblock = SPARC64_BOOT_BLOCK_OFFSET /
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SPARC64_BOOT_BLOCK_BLOCKSIZE;
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if (params->flags & IB_VERBOSE) {
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printf("Bootstrap start sector: %u\n", startblock);
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printf("Bootstrap byte count: %u\n", (unsigned)rv);
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printf("%sriting bootstrap\n",
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(params->flags & IB_NOWRITE) ? "Not w" : "W");
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}
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if (params->flags & IB_NOWRITE) {
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retval = 1;
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goto done;
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}
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rv = pwrite(params->fsfd, &bb, SPARC64_BOOT_BLOCK_MAX_SIZE,
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startblock * SPARC64_BOOT_BLOCK_BLOCKSIZE);
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if (rv == -1) {
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warn("Writing `%s'", params->filesystem);
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goto done;
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} else if (rv != SPARC64_BOOT_BLOCK_MAX_SIZE) {
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warnx("Writing `%s': short write", params->filesystem);
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goto done;
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} else
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retval = 1;
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done:
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return (retval);
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}
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